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Electro-optic measurement of terahertz pulse energy distribution

Rev. Sci. Instrum. 80, 113103 (2009); doi:10.1063/1.3245342

Published 5 November 2009

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J. H. Sun,1,2,3 J. G. Gallacher,2 G. J. H. Brussaard,4 N. Lemos,5 R. Issac,2 Z. X. Huang,3 J. M. Dias,5 and D. A. Jaroszynski2
1National Electromagnetic Scattering Laboratory, Beijing 100854, People's Republic of China
2Department of Physics, University of Strathclyde, Glasgow G4 0NG, United Kingdom
3School of Information Engineering, Communication University of China, Beijing 100024, People's Republic of China
4Department of Applied Physics, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
5GoLP, Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisbon, Portugal

An accurate and direct measurement of the energy distribution of a low repetition rate terahertz electromagnetic pulse is challenging because of the lack of sensitive detectors in this spectral range. In this paper, we show how the total energy and energy density distribution of a terahertz electromagnetic pulse can be determined by directly measuring the absolute electric field amplitude and beam energy density distribution using electro-optic detection. This method has potential use as a routine method of measuring the energy density of terahertz pulses that could be applied to evaluating future high power terahertz sources, terahertz imaging, and spatially and temporarily resolved pump-probe experiments. ©2009 American Institute of Physics
History: Received 27 April 2009; accepted 14 September 2009; published 5 November 2009
Permalink: http://link.aip.org/link/?RSINAK/80/113103/1
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KEYWORDS and PACS

Keywords
PACS
  • 78.20.Jq
    Electrooptical effects (bulk materials/thin films)
  • 84.37.+q
    Electric variable measurements
  • 84.40.-x
    Radiowave and microwave technology
  • 07.50.Hp
    Electrical noise and shielding equipment
  • YEAR: 2009

PUBLICATION DATA

ISSN:
0034-6748 (print)   1089-7623 (online)
Publisher:
AIP is a member of CrossRef AIP

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